I've seen "y", "a", and "ya" as symbols for year ("ya" actually for "years
ago"). Both "y" and "a" have problems:
*If "a" means year, then a petayear is "Pa", but that's a pascal.
*If "y" means year, then a gigayear is "Gy", but that's a gray.
Anyone have a better suggestion for a symbol for year?Pierre
